Casio’s Rangeman GPR B-1000 is a smartwatch powered by the sun

Batteries always die at the worst possible time. Whether it’s your phone when you need to book a 3am Uber, your headphones as you board a 12-hour flight, or your camcorder just as your sprog takes their first steps. What? Some people still have camcorders, all right? But if you’re lost in the wilderness (or somewhere scary like Reading) and there’s not enough juice left in your Casio G-Shock Rangeman GPR B-1000 (US$800) to power the GPS navigation, you can use energy from the sun to keep the sat-nav going for an extra hour, which should hopefully be just enough to get you back to safety. Phew.

Tom Wiggins Contributor

About

Stuff's second Tom has been writing for the magazine and website since 2006, when smartphones were only for massive nerds and you could say “Alexa” out loud without a robot answering. Over the years he’s written about everything from MP3s to NFTs, played FIFA with Trent Alexander-Arnold, and amassed a really quite impressive collection of USB sticks.

Areas of expertise

A bit of everything but definitely not cameras.